Buick LeSabre 1965 Service Manual page 441

7 - 1 4 SERVICE PROCEDURES
CHASSIS SUSPENSION
SECTION 7-C
SERVICE, ADJUSTMENT, AND REPLACEMENT
PROCEDURES-CHASSIS SUSPENSION
CONTENTS OF SECTION 7-C
Subject
7-8 Tire Service and Inspection .
7-9 Replace and Adjust Stabilizer
7-10 Replace and Adjust Front
Wheel Bearings
7-11 Removal and Installation of
Ball Joints and/or Steering
Knuckle
7-12 Removal and Installation of
Upper Control Arm Shaft or
Arm, and Shaft and Ball
Joint Assembly
Page
7-14
7-16
7-16
7-17
7-22
7-13
7-14
7-15
7-16
7-17
7-18
Subject
Checking and Replacing
Chassis Springs 7-22
Removal and Installation of
Brake Reaction Rod 7-27
Replace or Rebush Lower
Control Arm Assembly 7-27
Track Bar Service and
Replacement 7-27
Shock Absorber Service and
Replacement 7-31
Front Wheel Alignment 7-32
7-8 TIRE SERVICE AND
INSPECTION
a. Tire Inflation and
Inspection
Maintenance of correct inflation
pressure in all tires is one of the
most important elements of tire
care. Correct tire pressure is
also of great importance to ease
of handling and riding comfort.
Overinflation is detrimental to
tire life but not so much as un-
derinflation. Inflate a l l t i r e s
according to tire temperature as
specified in paragraph 1-2.
Driving without valve caps con-
tributes to under inflated tires.
The valve cap keeps dirt and wa-
ter out of the valve core and seals
the valve against leakage. When-
ever tires are inflated, be sure to
install valve caps and tighten
firmly by hand. Make sure that
rubber washer in cap is not dam-
aged or missing.
If tires are checked at frequent
intervals and adjusted to correct
inflation pressure, it is often pos-
sible to detect punctures and
make a correction before a tire
goes flat, which may severely
damage tire if car is in motion.
Slight differences in pressure be-
tween tires will always be found,
but a tire that is found to be 3 or
more pounds below the lowest of
its running mates can be sus-
pected of having a leaking valve
or a puncture.
All tires should be inspected reg-
ularly to avoid abnormal deterio-
ration from preventable causes.
If tires show abnormal or uneven
wear the cause should be deter-
mined and correction should be
made.
See that no metal or other foreign
material is imbedded in the tread.
Any such material should be re-
moved to prevent damage to tread
and tire carcass. Cuts in a tire
which are deep enough to expose
the cords will allow dirt and
moisture to work into the carcass
and ruin the tire unless promptly
repaired.
b. Tubeless Tire Repairs
A leak in a tubeless tire may be
located by inflating the tire to
recommended pressure (par. 1-2)
and then submerging t i r e and
wheel assembly in water, or by
applying water to tire with a hose
if wheel is mounted on car. Re-
move water from area where air
bubbles show and mark the area
with crayon. After removal of
the puncturing object from tire,
the puncture must be sealed to
prevent entrance of dirt and water
which would cause damage to the
tire carcass.
A small puncture of less than
3/32" diameter may be sealed
without removal of tire from
wheel by injecting sealing dough
with a gun. Punctures up to 1/4"
diameter may be sealed by in-
stallation of a rubber plug with
cement, after tire has been re-
moved from wheel. Sealing dough
with gun, and rubber plugs with
cement are contained in tire re-
pair kits available through tire
dealers. These materials should
be used as directed in the in-
structions supplied with the kits.
If a puncture is larger than 1/4"
or there is other damage to the
tire carcass, repairs should be
made by authorized tire dealers
in accordance with instructions
of the tire manufacturer.
c. Wheel Leaks
Examine rim flanges for sharp
dents. Any dent visible to the eye
should be straightened. The rim
flanges s h o u l d be thoroughly
cleaned with No. 3 coarse steel
wool thereby removing all oxi-
dized rubber, soap solution, etc.
If the flange is rusted, it can be
cleaned with a wire brush or in
extreme cases of pitted rims a
file can be used.